(halo = bromo, iodo).23 As an exception to the generally observed exclusive formation of α-linked glycosides in such reactions,2 we obtained a 3 / 1 mixture of α- and β-disaccharide 6 and 7, when we treated the silylated glycal 4 with NIS (N-iodosuccinimide) and the glycoside 5.4...
However, the enzyme greatly preferred Galβ1,3Galβ-O-naphthalenemethanol, a disaccharide component found in the linkage region tetrasaccharide in chondroitin sulfate and heparan sulfate. During the course of this study, a human cDNA clone was described that was thought to encode UDP-GlcUA:Galβ1...
After deallylation of the so-formed disaccharide, β-xylopyranosylation is brought about by reaction with α-tri-O-benzoyl xylopyranosyl bromide activated with silver triflate. Attempted xylosylation of cyclohexanol with S-phenyl2,3,4-tri-O-benzoyl-1-deoxy-1-thio-β-D-xylopyranosideS-oxide, ...
Spherical ferrite nanoparticles produced by a method that includes the steps of: preparing a first aqueous solution containing a disaccharide, an alkaline, an oxidation agent, seed particles and divalent iron ions; and conducting particl... Masanori ABE,H Handa,T Nakagawa,... - US 被引量: 1发...
ortho-Aminomethylphenylboronic acids are used in receptors for carbohydrates and various other compounds containing vicinal diols. The presence of the o-aminomethyl group enhances the affinity towards diols at neutral pH, and the manner in which this gro
We show that formation of COs is strongly dependent on the inclusion of free GlcNAc or certain 2-acylamido analogues of GlcNAc in assays and that Chs2 can transfer a single GlcNAc from UDP-GlcNAc to 2-acylamido analogues of GlcNAc and extend the resulting disaccharide with further GlcNAc ...
Structural and Functional Analysis of UGT92G6 Suggests an Evolutionary Link Between Mono- and Disaccharide Glycoside-Forming Transferases Glycosylation mediated by uridine diphosphate-dependent glycosyltransferase (UGT) is one of the most common reactions for the biosynthesis of small molecul... Huang Fong...
overexpression of TFEB suppresses endothelial inflammation and attenuate atherosclerosis in mice44. However, the functional roles of TFEB in SMCs and vascular remodeling have not been investigated. Trehalose is a nonreducing disaccharide composed of twod-glucose units linked α-1,1. Trehalose is ...
Changing the pH value of the solution can induce gelation of some polysaccharides, or contribute to gel formation induced by other factors, such as chitosan and Konjac glucomannan. Chitosan is a disaccharide composed of two glucosamine units connected by β-1,4-glycosidic bonds, forming a ...
These enzyme reactions were efficient enough to allow the one-pot preparation of the desired disaccharide. When p-nitrophenyl 2-acetamido-2-deoxy-α-D-glucopyranoside was the acceptor, the enzyme catalyzed the formation of a β-(1–3)-linked disaccharide glycoside (p-nitrophenyl 2-acetamido-2-...